Guide to Liverworts of Oregon: Key to Scapania 7
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Scapania 1 oil bodies several per cell > Scapania 2b marginal teeth evenly spaced or lacking > Scapania 3b dorsal lobe not decurrent > Scapania 5 ventral lobe long decurrent > Scapania 6b dorsal lobe 2/3 of ventral lobe > Scapania 7
Scapania umbrosa Marys Peak, Benton Co., Oregon. DHW m2449
7a Leaf lobes narrow, gradually tapering to apex; dorsal lobe pointing forward; perianth mouth entire; leaves sharply & coarsely serrate; on wood, occasional
Scapania umbrosa
Scapania undulata Shows non-decurrent dorsal lobes. Opal Creek, Marion County, Oregon. DHW m2143.
7b Leaf lobes round, apex not tapered or pointed; variable from entire leaves to much toothed leaves;on soil or rocks, sometimes aquatic, common
Scapania undulata
Copyright 2006 Northwest Botanical Institute